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Developments in quantum computing may jeopardize the security of internet voting. Such developments could compromise important electoral requirements, including integrity, eligibility, or the secrecy of the vote. Even the contents of a vote cast online today, when quantum computers are not yet known to be available, could be revealed tomorrow. Countries are already working on a post-quantum setting, but elections seem to remain an exception. In this paper, we explore the existing strategies to mitigate the quantum threat or their lack thereof, as well as the views of different stakeholders on these matters. To do so, we have conducted a mix of desk research as well as interviews with 24 experts in different fields, from electoral administrations to cybersecurity agencies, vendors, and academia. We assess their perceptions about quantum computing, its impact on internet voting, and on transitioning towards quantum-resistant cryptography, as well as on interagency cooperation and trust issues. Whereas we initially assumed that elections were an exception in regards to the transition towards post-quantum cryptography, this research shows that the electoral field is neither alone nor the most adequate one to start the implementation of this kind of cryptography.

AbstractQuantum computing research and development efforts have grown dramatically over the past decades, led in part by initiatives from governments around the world. Government quantum computing investments are often driven by national security or digital sovereignty concerns, with the language used depending on the geography involved. For example, a focus on "national security" and quantum computing is prominent in the USA, while European countries regularly focus on "digital sovereignty". These phrases are often loosely defined and open to interpretation, and they share some common motivations and characteristics (but also have important differences). This paper identifies specific governmental entities typifying the national security/digital sovereignty perspectives, along with these organisations' respective roles within national and international policy engagement in quantum computing. It analyses governmental structures, historical developments and cultural characteristics that contributed to this national security–digital sovereignty divide. Building on this analysis, we use the history of other technologies to illustrate how we might adapt tested policy approaches to modern political dynamics and to quantum computing specifically. We frame these policy approaches so that they do not overemphasise "digital sovereignty" or "national security", but rather address interests shared across both concepts, with a view to facilitating international collaboration.

AbstractThis document presents a portfolio optimization framework that employs a hybrid quantum computing algorithm and a futures market sentiment indicator—The Market Sentiment Meter (MSM) variable, developed jointly by CME Group and 1QBit. The methodology used was the Variational Quantum Eigensolver (VQE). The work presented here is divided into four portfolio optimization problem formulations, of binary and continuous variable formulations, determining which assets to pick their weights. This work demonstrates that adding the MSM variable can improve the performance of hybrid quantum solutions, by informing the asset selection problem with market environment information through the four MSM states.

The Manhattan Project, a response to Germany's combination of innovation and military power, unleashed nuclear physics on the world. Its success positioned the United States at the forefront of progress in critical technologies and demonstrated ...